Bottle stopper



(No Model.)

I. TRAUBE 8a A. KATTENTIDT.

BOTTLE STOPPERi PatentedJuly 5', 1892;

.232 1/6 ni'ava'x s 77 i in asses:

UNITE D TAT-Es ATENT OFFICE.

ISIDOR TRAUBE AND AUGUST KATTENTIDT, OF HANOVER, GERMANY.

" v BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 478,483, dated July 5, 1892.

Application filed June 5, 1890. Serial No. 354,338. (No model.) Patented in England September 9, 1889, No. 14,167, and in U France September 30, 1889,1113. 201,038.

To all whom it may concern;

Be it known that we, Isrnon TRAUBE and AUGUST KATTENTIDT, of the city of Hanover, in the German Empire, have invented certain new and useful Improvements in Bottles and other Stoppered Vessels for Producing Drops of Uniform Size, (patented in Great Britain September 9, 1889, No. 14,167,'and in France September 30, 1889, No. 201,038,) of which the following is a specification.

This invention relates to improvements in drop-counters for producing drops of uniform size, said drop bottles or vessels permitting the fluid to be measured off in drops, and relates especially to the arrangement according to which drops of uniform size are produced.

For several reasons it is very important in pharmacy that the physician knows about the dose of medicine prescribed according to drops, which is not possible with the dropbottles at present in use, owing to the very unequal size of the drops. When it is required that the drops be of uniform size, the surface from which the drop falls is preferably made circular, conformable to the purpose, and of certain area, but especially of equal size in all bottles. The drop-forming surface must also be in the bottle or stopper, in order that the construction of the bottle in comparison with other constructions may be so simple that it can be manufactured without great expense. The question is solved by arranging the said drop-forming surface on a nose-like extension or projection of the stopper, but in such manner that it is not necessary to employ internal ways orchannels, as described in the British Patent No.1 l,167, granted to IsidorTraube, dated September 9, 1889, which latter proved too expensive in the manufacture. In the present case the capillary attraction of a small external groove is used, said groove leading to the drop-forming surface and so penetrating into the same that the wetting of the entire drop-surface which is requisite for obtaining drops of uniform size is attained. In other respects the vessel or bottle is so constructed that, according to an old principle already in use, the stopper and neck of the bottle are provided with appropriate recesses and grooves or ways,

which are brought into communication by turning the stopper so that air is admitted and at the same time fluid allowed to flow out in drops.

In contradistinction to the constructions hitherto employed, the air is no longer admitted through an orifice or boring on the neck of the bottle, but solely by means of vertical grooves in the stopper and neck of the bottle, thus giving a symmetrical form to both air and fluid ways and facilitating the manipulation of the bottle by the inexperienced.

Figure 1 of the accompanying drawings is a vertical section of a drop-bottle, the solid stopper being so adjusted that when the bottle is tilted the contents will flow out in drops. Figs. 2 and 3 are horizontal sections on the line 00 a: in Fig. 1, showing the ways or grooves in opened and closed position. Fig. 4 represents the stopper in elevation and the bottle in section. Figs. 5 to 8 represent modifications of the drop-bottle with doubly or trebly divided symmetrically-arranged air and out let ways or channels. Figs. 9 and 10 are crosssections on the line y y in Fig. 5 with opened and closed outlets. According to the construction represented in Figs. 1 to 4; the exterior of the solid stopper A is provided on the one side with the unconnected grooves a b for guiding the fluid to be dropped from the vessel and on the other side with the groove 0 for allowing air to enter the bottle. The groove or ends in the lower side of the nose-like extension 9 of the stopper, which is provided with an almost circular surface h, on which the drops are so formed that drops of absolutely uniform size are continuously produced. The neck B of the bottle is in the interior provided with an extension for forming a way or groove d, which will connect the exterior grooves a b of the stopper when the same is correspondingly turned to allow fluidto flow in drops from the bottle. The opposite side of the bottle-neck is provided with a lateral projecting hollow or grooved ridge or extension e, which when the stopper is placed in the position to allow fluid to flow from the bottle or vessel will communicate with the groove 0 of the stopper in order to allow air to enter the bottle ac-.

cording to the outflow of the fluid. The groove 0 ends at the upper edge of the neck of the bottle.

If it is desired to drop fluid out of the bottle, the stopper is turned until the grooves a d b on the one side and c e on the other side communicate with each other, whereas the bottle is closed by turning the stopper so as to bring the grooves out of connection with each other.

The modification represented in Figs. 5 to 8 dilfers in so far from the above-described drop-bottle as that all the grooves a b c b of the stopper and the lateral extensions d d of the neck of the bottle are arranged symmetrically to each other, so that it is immaterial which of the grooves a b. or c b and ways 61 or 01', Figs. 5 and 6, serve as outflow or airway. In the construction shown in Figs. 7 and 8 the fluid and air ways are also symmetrically arranged, but do not, as shown in Figs. 5 and 6,

consist of three connected ways a d b and c d b,but of two ways a d and c d, the means for forming the drops being in all cases the same. i

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performed,

we declare that what we claim, and desire tobottle for connecting at the same time grooves a and b to allow the passage of fluid from the bottle, substantially as set forth.

In witness whereof we have hereunto signed our names in the presenceof two subscribing witnesses.

ISIDOR TRAUBE. AUGUST KATTENTIDT. 

